[Leica] Protecting your eyeglasses from your older M

[rbrowne1 at mindspring.com (Robert Browne)]

Frank,

Try gluing on a rubber O ring of the proper size. Works for me.  They 
can be found at any hardware store. Pick up a couple of extras while 
you're there in case it falls off and gets lost.

Robert

Frank Farmer wrote:

I was wondering what most folks use to keep from scratching their 
eyeglasses with the metal eyepiece of older M's. I used a little 
snap-on plastic protector that I purchased from Don Goldberg for a 
while but it was knocked off my camera sometime this weekend and lost 
forever. I have often wondered about the little do-nuts that Stephen 
Gandy has at Camera Quest but have neither seen nor used one. What to 
ya'll use? Likes? Dislikes? I need to find a replacement.

Thanks in advance.

Frank Farmer
Jackson, Miss.